The Eiffel Tower in Paris, France, is the world's most visited monument with an entrance fee. Since opening in 1889, an estimated figure of nearly 250 million people has visited the tower, which offers panoramic views of Paris from its 905-feet viewing platform. Visitors can climb the 1,665 steps to the top or take one of the two duo-lift elevators. Visitors to the Tower comprised 84% overseas tourists and 16% French.

Source: Guinness World Records